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Fix #4279 (Retain selection after changing sort order)

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Kovid Goyal 2009-12-23 18:54:53 -07:00
parent 059b4c646a
commit d48f5583aa
1 changed files with 23 additions and 2 deletions
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25
src/calibre/gui2/library.py
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@ -11,7 +11,7 @@ from PyQt4.QtGui import QTableView, QAbstractItemView, QColor, \
QPen, QStyle, QPainter, \
QImage, QApplication, QMenu, \
QStyledItemDelegate, QCompleter
from PyQt4.QtCore import QAbstractTableModel, QVariant, Qt, \
from PyQt4.QtCore import QAbstractTableModel, QVariant, Qt, pyqtSignal, \
SIGNAL, QObject, QSize, QModelIndex, QDate
from calibre import strftime
@ -155,6 +155,10 @@ class TagsDelegate(QStyledItemDelegate):
return editor
class BooksModel(QAbstractTableModel):
about_to_be_sorted = pyqtSignal(object, name='aboutToBeSorted')
sorting_done = pyqtSignal(object, name='sortingDone')
headers = {
'title' : _("Title"),
'authors' : _("Author(s)"),
@ -285,13 +289,14 @@ class BooksModel(QAbstractTableModel):
def sort(self, col, order, reset=True):
if not self.db:
return
self.about_to_be_sorted.emit(self.db.id)
ascending = order == Qt.AscendingOrder
self.db.sort(self.column_map[col], ascending)
if reset:
self.clear_caches()
self.reset()
self.sorted_on = (self.column_map[col], order)
self.sorting_done.emit(self.db.index)
def refresh(self, reset=True):
try:
@ -696,6 +701,22 @@ class BooksView(TableView):
hv = self.verticalHeader()
hv.setClickable(True)
hv.setCursor(Qt.PointingHandCursor)
self.selected_ids = []
self._model.about_to_be_sorted.connect(self.about_to_be_sorted)
self._model.sorting_done.connect(self.sorting_done)
def about_to_be_sorted(self, idc):
selected_rows = [r.row() for r in self.selectionModel().selectedRows()]
self.selected_ids = [idc(r) for r in selected_rows]
def sorting_done(self, indexc):
if self.selected_ids:
indices = [self.model().index(indexc(i), 0) for i in
self.selected_ids]
sm = self.selectionModel()
for idx in indices:
sm.select(idx, sm.Select|sm.Rows)
self.selected_ids = []
def columns_sorted(self):
for i in range(self.model().columnCount(None)):